The Naute water treatment plant mainly supplies drinking water to the town of Keetmanshoop . As per treatment steps above, the Naute treatment plant uses a typical process for the purification of drinking water.
The first steps of treatment occur with the application of chlorine and lime, to disinfect and adjust the corrosivity characteristics of the water respectively. After that, a flocculant is dosed in the same channel. The flocculant binds the suspended clay particles into so called “floc”.
From the channels, the water is led into two clarifiers, where the floc forms in the middle compartment and then settles to the bottom in the outer compartment. The cleaned water from these clarifiers overflows into concrete channels, leading to sand filters. The settled floc becomes sludge and is removed from the bottom of the clarifiers periodically.
The water is further cleaned by filtering it through sand which removes the rest of the suspended matter. The water then enters a 1 800 m3 clear water well from where it is then pumped through to the terminal reservoirs in Keetmanshoop. Further disinfection takes place as the water enters these reservoirs.
